Nozzle and closure therefor



Jan. 10, 1928. 1,655,648 J. M. HOTHERSALL NOZZLE AND CLOSURE THEREFOR Filed June 14. 1920 Patented Jan. 10, 1928.

UNITED STATES 1,655,648 PA -E NT erries;

JOHN M. HOTI-IERSALL, OF BROOKLYN, IVE-EV YORK, ASSIGNOR TO AMERICAN CAN COMPANY, OF NEW YORK, N. Y., A CORPORATION' OF NEW JERSEY.

nozznn AND onosunn THEREFOR.

Application filed Junelli, 1920. SerialNo. 388,779.

, This'invention relates in general to can closures,while it has more particular reference to closures provided for the hermetic is the provision of an improved form of sealing of pouring nozzles and the like, it will be manifest as the invention is better understood that it has other valuable applications.

A principal object of the present invention is the provision of a closure which may be applied to the nozzle or other part after the container or can is filled with its content and through the use of suitable sealing dies.

The invention contemplates in this regard the provision of a nozzle and closure therefor which may be seated within the nozzle, 'and the parts brought to permanent sealing relation through a. single die operation.

Another important object of the invention nozzle closure which under the sealing pressure will not tend to buckle and which on the contrarywill be forced into tight engagethe seam parts of the nozzle before and after the sealing operation.

For the purpose of illustrating my invention I have shown on the drawing a portion of a can having side walls 11, top wall 12, from which a nozzle 13 extends upwardly. The can shown on the drawing is of the well-known large, square or rectangular character frequently employed for the packaging of varnish and other liquid content. The nozzle 13 is of tubular form and is secured to the can top 12 in any usual or preferred manner. It is provided near its top with an offset part 14, downwardly in clined slightly from the body of the nozzle, and providing a shoulder against which the closure seats. This closure in the present instance comprises a thin metal disc ldupon the under surface ofwhich is provided a coating or sheet 16 of paper or other packaging material. The outer ,edgesof. the discs or sheets 15 and 16 are formed into upstanding cylindrical flanges 17 adapted to be seamed with the nozzle part 18 above the shoulder 14. The discs are provided with inclined annular portions 19, seating upon the shoulder 1 and adapted to be wedged down tightly thereagainst when the scaling is accomplished. The part-sare fixed in sealingrelation by turning down or curling-the portion 21 of the can. nozzle which extends above the tops of the .flanges 17, as is1indicated in Fig. 4.. This maybe accomplished t by a die, an exampleof such die tam n closed in my co-pending applicatiomerial N o. 388,780, filed June 14, this idiefl first bending the part'zl ofthe nozzle Ji'n'and then down. upon the closure,curling the; edge of the nozzledown and onto theft o p of the closure. The inclination of the shoulder and disc parts insures against any tendency of the nozzleshoulder to creep inward out of the seam and the disc to buckle or be forced inwardly of the nozzle, and a tight, sightly curl results. lVhen the upper die first comes down on the upstanding portion 21 of the body flange the first action of the die is to tend to'force the part 21 straight downward, which force would be communicated to the horizontal offset part lent the metal and tend to force said. part 14 horizontally inward, which would disarrange the disks 15 and 16 and leave the upper part of the flange 21 too short to properly produce the desired looking curl (shown in Fig. By beginning the operation of the dies with the shoulder 14. inclined downward and outward (Fig. 3) the tendency of the upper die is to draw the part 14 slightly downward and outward. The part 14 is not actually displaced outward but it is somewhat pulled outward and prevented from being pressed inward as first above described. This is important in the production of a perfect closure.

It is thought that the invention and many.

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or sacrificing all of its material advantages, the form liereinbei'ore described being morely a preferred embodiment thereof.

I claim:

1. A nozzle and closure therefor, comprising a sheet metal body wall having an outwardly and downwardly inclined offset near its upper end, said closure comprising a sheet adapted to seat on said and having an upstanding peripheral flange over which the upper end oi? the nozzle is curled to hold the parts in sealing relation.

2. A; nozzle and closure thereior, comprising a sheet metal body wall having an outwardly and downwardly inclined oil'set near its upper end, said closure comprising a sheet adapted to seat on said ol set and having an upstanding peripheral flange over which the upper end of the nozzle is curled to hold the parts in sealing relation, and a sealing gasket included in the seam between said nozzle and closure.

3. A nozzle and closure therefor, said nozzle comprising a tubular member having an offset outwardly and downwardly inclined internal shoulder near its upper end, and said closure comprising a inetal'and a fibre disc seated on said shoulder, the material of the nozzle beyond the shoulder being crimped or curled down onto said sheets to hold the parts in sealing relation.

4. A nozzle and closure therefor, said nozzle and closure having outwardly and downwardly inclined parts entering into a curled seam and insuring against buckling of the closure in the forming of the seam.

5. A nozzle and the like having its edge adapted to be formed into a sealing scam embracing the edge of a sealing disc, said nozzle having an upstanding seaming edge,- a body part 12}, and between said seaming edge and said body, and integral therewith, an outwardly and downwardly inclined shoulder.

6. A nozzle and closure therein, the nozzle having an outwardly extended flat shoulder clamping the under side of the margin of the closure, the closure resting on said shoulder and having an upstanding edge, and the edge of the nozzle curled inward and downward, while the shoulder is downwardly and outwardly inclined, over the edge of the closure and against the flat portion of the closure which rests on said shoulder to clamp the closure against the shoulder.

7. A method of closing sheet metal nozzles which consists in forming the nozzle with an outstanding and downwardly inclined shoulder and with an upstanding edge at the outer part of said shoulder, then applying a disklike closure on said shoulder within the nozzle and then curling the upstanding edge of the nozzle inward and downward and clamping the closure against said shoulder by the edge of the nozzle.

JOHN M. HOTHERSALL. 

